Bleeding after sex

Hey ladies got a quick question for y’all me and my wife we are early in pregnancy and I’ve noticed how after we have sex she has some bleeding we have gone a few weeks with out sex cause I’m in fear of her losing the baby seeing that we have an history of that being the case but even with that being said we can go by doctors orders and wait to have sex to see if the bleeding stops when we get the okay to try things again she still has some bleeding am I just being overly worried about it or is this just a normal thing that happens